i have a fuel pressure tester but I don’t know where to hook it up to, there is no shrater valve I know about and am wondering just how I’d test it, thanks

 

There is no "Schraeder" valve. So you can add one yourself: https://www.ebay.com/itm/Banjo-Bolt-...-/251254996574

The easiest place to add it is below the fuel pressure regulator:
https://www.yotatech.com/forums/f116.../#post52330847

I left mine permanently installed. If you want to take it on and off, you MUST replace the two crush washers each time. Cheaper than dirt, but the only place I've ever found them is the dealer.